I came to the beach in the height of summer to get a sexy big-breasted bikini-clad older sister! The summer beach is full of excited girls. At such a beach, a seemingly kind older sister who approached me and a virgin boy face each other. As they listen to each other's stories, naughty play unfolds before they know it. Starting with paizuri and sukumizu play, they eventually reach insertion!! Will the virgin boy be able to safely graduate from his virginity!?